* {
    margin: 0;
    padding: 0;
}

ul {
    margin: 0;
}

li {
    list-style: none;
}

.tip {
    font-size: 12px;
    color: #999;
    text-align: center;
    line-height: 28px;
}

.link {
    cursor: pointer;
    color: #1890ff;
}